CAT1320WI-42-GT3 datasheet(1/18 Pages) ONSEMI

部件名	CAT1320WI-42-GT3

功能描述	Supervisory Circuits with I2C Serial 32K CMOS EEPROM

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制造商	ONSEMI [ON Semiconductor]

网页	http://www.onsemi.com

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1

Characteristics subject to change without notice.

Doc. No. MD-3014, Rev. D

ALO

GEN FR

TM

LEAD FREE

CAT1320, CAT1321

FEATURES

s Precision power supply voltage monitor

— 5V, 3.3V and 3V systems

- +5.0V (+/- 5%, +/- 10%)

- +3.3V (+/- 5%, +/- 10%)

- +3.0V (+/- 10%)

s Active low reset, CAT1320

s Active high reset, CAT1321

s Valid reset guaranteed at V

CC=1V

s 400kHz I2C bus

s 3.0V to 5.5V operation

s Low power CMOS technology

s 64-Byte page write buffer

s 1,000,000 Program/Erase cycles

s 100 year data retention

s 8-pin DIP, SOIC, TSSOP and TDFN packages

s Industrial temperature range

PIN CONFIGURATION

DESCRIPTION

The CAT1320 and CAT1321 are complete memory and

supervisory solutions for microcontroller-based systems.

A 32kbit serial EEPROM memory and a system power

supervisor with brown-out protection are integrated

together in low power CMOS technology. Memory

interface is via a 400kHz I2C bus.

The CAT1320 provides a precision VCC sense circuit

and drives an open drain output,

RESET low whenever

VCC falls below the reset threshold voltage.

The CAT1321 provides a precision VCC sense circuit

that drives an open drain output, RESET high whenever

VCC falls below the reset threshold voltage.

The power supply monitor and reset circuit protect

memory and system controllers during power up/down

and against brownout conditions. Five reset threshold

voltages support 5V, 3.3V and 3V systems. If power

supply voltages are out of tolerance reset signals become

active, preventing the system microcontroller, ASIC or

peripherals from operating. Reset signals become inactive

typically 200 ms after the supply voltage exceeds the reset

threshold level. With both active high and low reset options,

interface to microcontrollers and other ICs is simple. In

addition, the

RESET (CAT1320) pin can be used as an

input for push-button manual reset capability.

The CAT1320/21 memory features a 64-byte page. In

addition, hardware data protection is provided by a VCC

sense circuit that prevents writes to memory whenever VCC

falls below the reset threshold or until VCC reaches the reset

threshold during power up.

Available packages include an 8-pin DIP, SOIC, TSSOP

and 4.9 x 3mm TDFN.

PDIP (L) SOIC (W)

TDFN PACKAGE: 4.9MM X 3MM

(ZD2)

TSSOP (Y)

A0

VCC

RESET

SCL

SDA

A1

A2

VSS

CAT1320

1

2

3

4

8

7

6

5

VCC

RESET

SCL

SDA

CAT1321

1

2

3

4

8

7

6

5

A0

A1

A2

VSS

A0

VCC

RESET

SCL

SDA

A1

A2

VSS

CAT1320

1

2

3

4

8

7

6

5

CAT1321

1

2

3

4

8

7

6

5

VCC

RESET

SCL

SDA

A0

A1

A2

VSS

1

2

3

4

8

7

6

5

VCC

RESET

SCL

SDA

CAT1320

A0

A1

A2

VSS

VCC

RESET

SCL

SDA

CAT1321

A0

A1

A2

VSS

1

2

3

4

8

7

6

5

Supervisory Circuits with I2C Serial

32K CMOS EEPROM

类似零件编号 - CAT1320WI-42-GT3

制造商	部件名	数据表	功能描述
Catalyst Semiconductor	CAT1320WI-42GT3	143Kb / 18P	Supervisory Circuits with I2C Serial 32K CMOS EEPROM
	CAT1320WI-42GT3	144Kb / 18P	Supervisory Circuits with I2C Serial 64K CMOS EEPROM
	CAT1320WI-42SOIC	496Kb / 18P	Supervisory Circuits with I2C Serial 32K CMOS EEPROM
	CAT1320WI-42T3	143Kb / 18P	Supervisory Circuits with I2C Serial 32K CMOS EEPROM
	CAT1320WI-42T3	144Kb / 18P	Supervisory Circuits with I2C Serial 64K CMOS EEPROM

More results

类似说明 - CAT1320WI-42-GT3

制造商	部件名	数据表	功能描述
Catalyst Semiconductor	CAT1320	496Kb / 18P	Supervisory Circuits with I2C Serial 32K CMOS EEPROM
	CAT1320	143Kb / 18P	Supervisory Circuits with I2C Serial 32K CMOS EEPROM
	CAT1640	125Kb / 18P	Supervisory Circuits with I2C Serial 64K CMOS EEPROM
	CAT1640	144Kb / 18P	Supervisory Circuits with I2C Serial 64K CMOS EEPROM
ON Semiconductor	CAT1640	802Kb / 18P	Supervisory Circuits with I2C Serial 64K CMOS EEPROM Doc. No. MD-3012, Rev. D
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